|Publication number||US8172119 B2|
|Application number||US 12/264,333|
|Publication date||May 8, 2012|
|Filing date||Nov 4, 2008|
|Priority date||Nov 4, 2008|
|Also published as||CA2742378A1, CN102216036A, EP2349653A2, US20100108738, WO2010053527A2, WO2010053527A3|
|Publication number||12264333, 264333, US 8172119 B2, US 8172119B2, US-B2-8172119, US8172119 B2, US8172119B2|
|Inventors||Jonathan Newman Cedar, Przemyslaw Godycki|
|Original Assignee||Staples The Office Superstore, Llc|
|Export Citation||BiBTeX, EndNote, RefMan|
|Patent Citations (56), Non-Patent Citations (1), Classifications (7), Legal Events (5)|
|External Links: USPTO, USPTO Assignment, Espacenet|
Embodiments of the invention relate to staplers, such as desktop staplers, that may be actuated in a parallel motion.
2. Discussion of Related Art
Staplers are used to join target objects together by driving a staple through the target objects and folding over the ends of the staple to secure the target objects together In the case of desktop staplers, which are widely used in offices and schools, the target objects are generally pieces of paper and the staples are generally comprised of thin metal. It is desirable to improve the ease of use in operating a desktop stapler.
One illustrative embodiment is directed to a stapler movable between a rest position and a staple ejection position. The stapler comprises a base, a stapler body, a handle, and a linkage assembly that couples the base to the handle. The stapler body comprises a magazine configured to hold staples, a strike plate configured to eject a staple from the magazine when the stapler is in the staple ejection position, a magazine configured to hold staples, and at least one engagement surface coupled to the strike plate. The handle of the stapler is operable to actuate the strike plate. The linkage assembly comprises at least one linkage member having at least one actuation surface configured to exert a force on the at least one engagement surface as the at least one actuation surface moves along the at least one engagement surface. The linkage assembly couples the base to the handle in such a manner that the handle remains at least substantially parallel to the base as the handle is moved from the rest position to the staple ejection position.
Another illustrative embodiment is directed to a method of moving a stapler between a rest position and a staple ejection position in which a strike plate ejects a staple from a staple magazine. The method comprises applying a downward force to a handle of the stapler to cause at least one linkage member, coupled between the handle and a base of the stapler, to move with respect to at least one mount coupled to the handle and exert a force on at least one engagement surface coupled to the strike plate as at least one actuation surface of the at least one linkage member moves along the at least one engagement surface. The handle remains at least substantially parallel to the base as the handle is moved from the rest position to the staple ejection position.
A further illustrative embodiment is directed to a stapler movable between a rest position and a staple ejection position. The stapler comprises a base and a stapler body comprising a strike plate and a magazine configured to hold staples. The strike plate is configured to eject a staple from the magazine when the stapler is in the staple ejection position. The stapler Her comprises a handle operable to actuate the strike plate, and means for coupling the base to the handle in such a manner that the handle remains at least substantially parallel to the base as the handle is moved from the rest position to the staple ejection position.
Embodiments described herein relate to staplers that are constructed in a manner such that the handle of the stapler remains at least substantially parallel to the base as the handle is moved downward by a user to actuate a stapling operation. The stapler may operate with improved ease relative to conventional staplers. In particular, the parallel motion of the handle relative to the base during actuation results in a handle having a larger actuation area relative to conventional staplers. To create maximum leverage, conventional staplers are actuated by pressing the end of the handle above the staple ejection region of the magazine. In a parallel motion stapler, a user is not restricted to pressing the handle in a certain area to maximize leverage. The user may actuate the stapler by pressing on any portion of the stapler. This affords more flexibility, and makes the stapler easier to grip and squeeze. Thus, the stapler is well-suited for both hand-held and desktop use. In addition, the unique nature of the actuation mechanism is appealing to users of staplers.
The base 3 comprises a lower housing 11, an anvil 13, and a support structure 15 for the linkage assembly 9. The linkage assembly support structure 15 comprises first and second front mounts 17 a-b and first and second rear mounts 17 c-d, to which the first and second front linkage members 9 a-b and first and second rear linkage members 9 c-d are respectively pivotally coupled. Likewise, the handle 5 comprises first and second front mounts 19 a-b and first and second rear mounts 19 c-d, to which the first and second front linkage members 9 a-b and first and second rear linkage members 9 c-d are respectively pivotally coupled.
The main body 7 comprises a staple magazine 21 configured to hold a strip of staples, a strike plate 23 configured to eject a staple from the staple magazine, and a strike plate support structure 25 that is coupled to and supports the strike plate. In this embodiment, each of the staple magazine 21 and strike plate support structure 25 is pivotally coupled to the base 3 via the first and second rear mounts 17 c-d, and may be rotated independently about the first and second rear mounts. Alternatively, each of the staple magazine 21 and strike plate support structure 25 may not rotate independently about the first and second rear mounts. In addition, in alternative embodiments, the first and second front mounts 17 a-b and/or the first and second rear mounts 17 c-d may be slidably coupled to the first and second front linkage members 9 a-b and first and second rear linkage members 9 c-d.
The main body 7 further comprises first and second nodes 27 a-b coupled to the strike plate support structure 25. Each node may comprise a bushing, rivet, post or some other protuberance, which may be separately formed from or integrally formed with the strike plate support structure 25. Although the nodes of this embodiment are round, the nodes may alternatively be formed in other shapes (e.g., square or oval). In stapler 1, the nodes 27 a-b are constructed to directly interface the front linkage members 9 a-b, although an indirect arrangement is alternatively possible.
The location of nodes 27 a-b may be selected to facilitate the stapling operation. In the embodiment described above, the nodes 27 a-b are located at a horizontal position that is between a quarter of the distance from the front handle mounts 19 a-b to the front base mounts 17 a-b and half the distance from the front handle mounts 19 a-b to the front base mounts 17 a-b when the handle 5 is in the rest position. More particularly, the nodes may be located at a horizontal position that is between 30% and 45% of the distance from the front handle mounts 19 a-b to the front base mounts 17 a-b when the handle 5 is in the rest position. For example, the nodes may be located at a horizontal position that is approximately 37% of the distance from the front handle mounts 19 a-b to the front base mounts 17 a-b when the handle 5 is in the rest position. Of course, the positions described are merely exemplary, and a number of other positions are possible.
Many configurations are possible for loading the staple magazine 21 with staples. For example, the staple magazine 21 may be extendible at the front of the stapler 1 so that staples may be conveniently loaded without displacement of the handle or base. An ejection button may be located at the rear of the main body 7 to cause the staple magazine 21 to extend at the front of the stapler 1.
The base 3 of the stapler 1 may be adapted to stabilize the stapler on a flat surface, such that the base remains in a fixed position on the surface as the handle 5 is pressed downward by a user. For example, the base 3 may comprise a flat surface, stabilizing “legs” or “feet,” and/or other attributes conventionally found at the bottom surface of a desktop stapler. However, it should be appreciated that the base 3 need not be situated on a surface and/or along a lower region of the stapler when the stapler is in a resting position or in use. For example, when not in use, the stapler 1 may be oriented vertically by balancing the stapler on its front end or rear end. Further, the stapler 1 may be operated to cause a stapling operation when in a vertical or upside-down orientation such that the base 3 is oriented vertically or in a direction that faces upward.
When the base 3 of the stapler is disposed on a flat surface, the staple magazine 21, strike plate 23, and strike plate support structure 25 move vertically; that is, at least a portion of each of the foregoing components moves downward during the stapling operation. However, these components do not undergo any substantial motion in the directions perpendicular thereto (i.e., forward, backward, and to either side). The handle 5, on the other hand, moves both downward and forward during in the stapling operation. If desired, the stapler 1 could be constructed such that the handle moves only vertically with respect to the base, or so that the handle moves both downward and backward during in the stapling operation. The stapler, of course, may operate in the same manner when not disposed on a flat surface.
With reference again to
The motion of the rear linkage members 9 c-d during the stapling operation described above substantially mirrors the motion of the front linkage members 9 a-b; however, in the embodiment described above, the rear linkage members 9 c-d do not exert a force on nodes or another portion of the stapler main body 7. If desired, one or more nodes to be actuated by the first and/or second rear linkage members 9 a-d could be provided on the stapler body and could engage the rear linkage members in a manner similar to the engagement of the front linkage members 9 a-b with nodes 27 a-b.
Front linkage members 9 a-b may be constructed and arranged to optimize the force applied to the nodes 27 a-b.
The front linkage member 9 a comprises a front handle mount aperture 35, a front base mount aperture 37, and a curved actuation surface 39. The node 27 a comprises an engagement surface 40, which engages with the curved actuation surface 39 of the front linkage member 9 a and receives the force applied by the curved actuation surface 39. In the example of
The curved actuation surface 39 may have a contour selected based, at least in part, on the desired force to be applied to the nodes during the stapling operation. This force may vary during the stapling operation. According to one example, the curved actuation surface 39 has a substantially constant radius of curvature.
In the embodiment described above, front linkage member 9 a has a curved actuation surface 39, which facilitates stapling operation by the user. However, the invention is not limited to the particular configuration described above. For example, the actuation surface may alternatively be straight, or may have a different degree of curvature than that shown in
In the embodiments described herein, the rear linkage members 9 c-d have the same shape and dimensions as the front linkage members 9 a-b. However, like the front linkage members 9 a-b, the rear linkage members 9 c-d may also have different configurations.
As may be appreciated from the embodiments described above, different numbers and configurations of linkage members are possible. For example, for each of the embodiments described herein, a pair of front linkage members and/or a pair of rear linkage members may be provided, as shown in
For purposes of example,
Having thus described several aspects of at least one embodiment of this invention, it is to be appreciated that the present invention is not limited in its application to the details of construction and the arrangement of components set forth in the foregoing description or illustrated in the drawings. Various alterations, modifications, and improvements may readily occur to those skilled in the art. Such alterations, modifications, and improvements are intended to be part of this disclosure, and are intended to be within the spirit and scope of the invention. Accordingly, the foregoing description and drawings are by way of example only.
Further, although certain advantages of the devices and methods described herein have been expressed, these advantages are provided merely to illustrate potential applications, etc., of such devices and methods, and do not define necessary features of the invention. The phraseology and terminology used herein is for the purpose of description and should not be regarded as limiting. The use of “including,” “comprising,” or “having,” “containing,” “involving,” and variations thereof herein, is meant to encompass the items listed thereafter and equivalents thereof as well as additional items.
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|U.S. Classification||227/120, 227/107|
|International Classification||B25C5/00, B25C5/11|
|Cooperative Classification||B25C5/025, Y10T29/49|
|Feb 20, 2009||AS||Assignment|
Owner name: STAPLES THE OFFICE SUPERSTORE, LLC,MASSACHUSETTS
Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:CEDAR, JONATHAN NEWMAN;GODYCKI, PRZEMYSLAW;SIGNING DATESFROM 20081203 TO 20090126;REEL/FRAME:022291/0269
Owner name: STAPLES THE OFFICE SUPERSTORE, LLC, MASSACHUSETTS
Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:CEDAR, JONATHAN NEWMAN;GODYCKI, PRZEMYSLAW;SIGNING DATESFROM 20081203 TO 20090126;REEL/FRAME:022291/0269
|Jun 19, 2012||CC||Certificate of correction|
|Dec 18, 2015||REMI||Maintenance fee reminder mailed|
|May 8, 2016||LAPS||Lapse for failure to pay maintenance fees|
|Jun 28, 2016||FP||Expired due to failure to pay maintenance fee|
Effective date: 20160508